# TimeEpochDateString¶

class astropy.time.TimeEpochDateString(val1, val2, scale, precision, in_subfmt, out_subfmt, from_jd=False)[source]

Base class to support string Besselian and Julian epoch dates such as ‘B1950.0’ or ‘J2000.0’ respectively.

Attributes Summary

 cache Return the cache associated with this instance. jd2_filled mask masked scale Time scale value

Methods Summary

 format_string(str_fmt, **kwargs) Write time to a string using a given format. mask_if_needed(value) parse_string(timestr, subfmts) Read time from a single string, using a set of possible formats. set_jds(val1, val2) str_kwargs() Generator that yields a dict of values corresponding to the calendar date and time for the internal JD values. to_value([parent]) Return time representation from internal jd1 and jd2.

Attributes Documentation

cache

Return the cache associated with this instance.

jd2_filled
mask
masked
scale

Time scale

value

Methods Documentation

format_string(str_fmt, **kwargs)

Write time to a string using a given format.

By default, just interprets str_fmt as a format string, but subclasses can add to this.

mask_if_needed(value)
parse_string(timestr, subfmts)

Read time from a single string, using a set of possible formats.

set_jds(val1, val2)[source]
str_kwargs()

Generator that yields a dict of values corresponding to the calendar date and time for the internal JD values.

to_value(parent=None)

Return time representation from internal jd1 and jd2. This is the base method that ignores parent and requires that subclasses implement the value property. Subclasses that require parent or have other optional args for to_value should compute and return the value directly.